C H1077 Pages: 2

Reg No.:_. Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
EIGHTH SEMESTER B.TECH DEGREE EXAMINATION, MAY 2019

Course Code: EC472
Course Name: INTEGRATED OPTICS & PHOTONIC SYSTEMS

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks
1 a) Derive Continuity equation in point form . (3)

b) From the fundamental laws of electromagnetic fields, derive the Maxwell’s (12)
equation for time varying field.
2 a) Define optical waveguide and classify optical waveguide according to geometry. (5)
b) A symmetric planar waveguide is made of glass with 1115 1.5 and 12 is 1.46. The (3)
guide is excited by source of wavelength 0.85 um. What is the range of
propagation constant?
௦) With figure give the classification of optical structure that confine light in single (7)
dimension.
3 ஐ Write notes on materials used for the construction of different waveguides. (3)
b) Give the details of compounds used and fabrication details of semiconductor (7)
waveguides.
c) Give the classification of polymers. What are the different types of polymers? (5)
PART B
Answer any two full questions, each carries 15 marks.
4 a) With figure detail about the coupling efficiency calculation using end-butt (5)
coupling.
b) Optical energy can be lost from waveguide modes. Give the reason for different (5)

types of losses.

c) Describe about optical splitters. (5)
5 a) Explain the basic theory and fabrication of the grating couplers. (5)
b) What is multilayer planar waveguide couplers? (5)

c) Describe the method of Crank Nicolson scheme for solving the paraxial (5)
propagation equation.

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